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A 100 kVA, 2500/125, 60 Hz, step down transformer has the following parameters: Rus 0.015 Ω...
A single-phase 100-kVA, 2400/240-volt, 60-Hz distribution transformer is used as a step-down transformer. The load, which...
A single-phase 100-kVA, 2400/240-volt, 60-Hz distribution transformer is used as a step-down transformer. The load, which is connected to the 240-volt secondary winding, absorbs 80 kVA at 0.8 power factor lagging and is at 230 volts. Assuming an ideal transformer, calculate the following: a) primary voltage. b) load impedance. c) load impedance referred to the primary. d) the real and reactive power supplied to the primary winding
3.4 A single-phase 100-kVA, 2400/240-volt, 60-Hz distribution transformer is used as a step-down transformer. The load,...
3.4 A single-phase 100-kVA, 2400/240-volt, 60-Hz distribution transformer is used as a step-down transformer. The load, which is connected to the 240-volt secondary wind- ing, absorbs 80 kVA at 0.8 power factor lagging and is at 230 volts. Assuming an ideal transformer, calculate the following: (a) primary voltage, (b) load impedance, (c) load impedance referred to the primary, and (d) the real and reactive power sup- plied to the primary winding.
1) A single-phase 50-kVA, 2400/240 volt, 60 Hz distribution transformer is used as a step-down tr...
1) A single-phase 50-kVA, 2400/240 volt, 60 Hz distribution transformer is used as a step-down transformer at the load end of a 2400-volt feeder whose series impedance is (1.0+2.0) Ω. The equivalent series impedance of the transformer is (10+j25) Ω referred to the high voltage (primary) side. The transformer is delivering rated load at 0.8 power factor lagging and at rated secondary volitage. Neglect the transformer exciting curent. Using the transtormer raltings as base quantities work this problem in per...
A single-phase transformer has the following data: 10 kVA, 2200/220 V, 60 Hz and its circuit...
A single-phase transformer has the following data: 10 kVA, 2200/220 V, 60 Hz and its circuit parameters are as follows: L1 = 23.75 H, L2 = 0.2375 H, R1 = 5.2 Ω, R2 = 0.052 Ω, M = 2.37 H. The transformer was connected to the supply of rated voltage. Write the voltage equations,
0% 0 pts) A 100 kVA. I 3 8 2.4 kV step down transformer has the...
0% 0 pts) A 100 kVA. I 3 8 2.4 kV step down transformer has the following parameters (referred to the secondary): Rop-0.08 04m Tn the transformer is 100 ad KVA at 09 pf lagging at 2160 V. Find the voltage applied to the primary side of the transtormer Find the voltage regulation and efficiency 216D Q니 10.3-2400 1002 042to V(52 467 oo62 06 (10 pts) Solve the previous problem using the PU system. Use the rating of the transformer...
A 75-kVA, 4900-250-V,50-Hz, single-phase transformer has the following parameters expressed in ohms: RLS = 0.005 ...
A 75-kVA, 4900-250-V,50-Hz, single-phase transformer has the following parameters expressed in ohms: RLS = 0.005 RHS = 2.477 RfeHS = 44,167 XLS = 0.0115 XHS = 4.8419 XMHS = 7,798.2 The transformer is operating in the step-down mode, delivering 70 % of the rated load at rated voltage and 0.98 p.f. lagging. Determine the magnitude of the input impedance of the combined transformer and load in Ohms.
Problem (1): A 15-KVA, 2400:240-V, 60 Hz transformer has the following equivalent circuit parameters: R =...
Problem (1): A 15-KVA, 2400:240-V, 60 Hz transformer has the following equivalent circuit parameters: R = 2.522 R2 = 0.02522 Xi = 722 X = 0.0712 Re = 32 kl Xm = 11.5 k12 If the transformer is supplying a 10-kW, 0.8 PF lagging load at rated voltage, assuming the output voltage is the reference, draw the transformer's exact equivalent circuit referred to the primary (H.V) side and use it to calculate: 1. The input current 2. The input voltage...
3.) The equivalent low-side parameters of a 250-KVA, 4160480-V, 60 Hz transformer are Reals 0.00920 2...
3.) The equivalent low-side parameters of a 250-KVA, 4160480-V, 60 Hz transformer are Reals 0.00920 2 and Xeais 0.0433 12. The transformer is operating in the step-down mode and is delivering rated current at rated voltage to a 0.840 power-factor lagging load. Determine (a) the no- load voltage; (b) the actual input voltage at the high side; (c) the high-side current; (d) the input impedance; (e) the voltage regulation; the voltage regulation if the power factor of the load is...
4.41 Consider ạ 25 kVA, 240°/240 V, 60 Hz transformer with Z,-2.533 +J2.995 Ω and Z, = (2.5333 + ...
4.41 Consider ạ 25 kVA, 240°/240 V, 60 Hz transformer with Z,-2.533 +J2.995 Ω and Z, = (2.5333 + )2.995) 10-2 S2, referred to the primary and secondary sides, respectively. b) The transformer is connected at the receiving end of a feeder that has an impedance of 0.3 +j 1.8 Ω. Let the sending end-voltage magnitude of the feeder be 2400 V. Also there is a load connected to the secondary side of the transformer that draws rated current from...
Question 2 A single-phase transformer has the following nameplate ratings: 100 kVA, 7200/240 V and 60...
Question 2 A single-phase transformer has the following nameplate ratings: 100 kVA, 7200/240 V and 60 Hz. The following results are obtained from open-circuit and short-circuit tests: Test Open-circuit Short-circuit Voltage 7200 V 250 V Current 0.65 A 13.89 A Real Power Input 425 W 1420 W a) Determine the parameters of this transformer, all referred to the primary side. b) The secondary of this transformer is connected to a load that draws 100% of the rated power at rated...
A single-phase 100-kVA, 2400/240-volt, 60-Hz distribution transformer is used as a step-down transformer. The load, which is connected to the 240-volt secondary winding, absorbs 80 kVA at 0.8 power factor lagging and is at 230 volts. Assuming an ideal transformer, calculate the following: a) primary voltage. b) load impedance. c) load impedance referred to the primary. d) the real and reactive power supplied to the primary winding
1) A single-phase 50-kVA, 2400/240 volt, 60 Hz distribution transformer is used as a step-down transformer at the load end of a 2400-volt feeder whose series impedance is (1.0+2.0) Ω. The equivalent series impedance of the transformer is (10+j25) Ω referred to the high voltage (primary) side. The transformer is delivering rated load at 0.8 power factor lagging and at rated secondary volitage. Neglect the transformer exciting curent. Using the transtormer raltings as base quantities work this problem in per...
0% 0 pts) A 100 kVA. I 3 8 2.4 kV step down transformer has the following parameters (referred to the secondary): Rop-0.08 04m Tn the transformer is 100 ad KVA at 09 pf lagging at 2160 V. Find the voltage applied to the primary side of the transtormer Find the voltage regulation and efficiency 216D Q니 10.3-2400 1002 042to V(52 467 oo62 06 (10 pts) Solve the previous problem using the PU system. Use the rating of the transformer...
Problem (1): A 15-KVA, 2400:240-V, 60 Hz transformer has the following equivalent circuit parameters: R = 2.522 R2 = 0.02522 Xi = 722 X = 0.0712 Re = 32 kl Xm = 11.5 k12 If the transformer is supplying a 10-kW, 0.8 PF lagging load at rated voltage, assuming the output voltage is the reference, draw the transformer's exact equivalent circuit referred to the primary (H.V) side and use it to calculate: 1. The input current 2. The input voltage...
3.) The equivalent low-side parameters of a 250-KVA, 4160480-V, 60 Hz transformer are Reals 0.00920 2 and Xeais 0.0433 12. The transformer is operating in the step-down mode and is delivering rated current at rated voltage to a 0.840 power-factor lagging load. Determine (a) the no- load voltage; (b) the actual input voltage at the high side; (c) the high-side current; (d) the input impedance; (e) the voltage regulation; the voltage regulation if the power factor of the load is...
4.41 Consider ạ 25 kVA, 240°/240 V, 60 Hz transformer with Z,-2.533 +J2.995 Ω and Z, = (2.5333 + )2.995) 10-2 S2, referred to the primary and secondary sides, respectively. b) The transformer is connected at the receiving end of a feeder that has an impedance of 0.3 +j 1.8 Ω. Let the sending end-voltage magnitude of the feeder be 2400 V. Also there is a load connected to the secondary side of the transformer that draws rated current from...
Question 2 A single-phase transformer has the following nameplate ratings: 100 kVA, 7200/240 V and 60 Hz. The following results are obtained from open-circuit and short-circuit tests: Test Open-circuit Short-circuit Voltage 7200 V 250 V Current 0.65 A 13.89 A Real Power Input 425 W 1420 W a) Determine the parameters of this transformer, all referred to the primary side. b) The secondary of this transformer is connected to a load that draws 100% of the rated power at rated...
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